Lg Electronics Inc.

Korea Advanced Institute of Science and Technology

Seongjae Kim

Seunghwan Oh

Bongjin Kim

Jaehoon Chung

Sangrim Lee

Heayoun Sul

Dongho Cho

Sangmi Noh

Juyong Lee

Seungwon Keum

Dangoh Kim

Moongyo Jung

Deokhyun Youn

Myungryul Lee

Younghoon Yun

A method for estimating a phase noise by a wireless device in a wireless communication system according to an embodiment of the present disclosure comprises the steps of: receiving a pre-configured pilot signal and a phase tracking reference signal (PTRS); calculating a first phase noise on the basis of the pre-configured pilot signal; calculating a common phase error (CPE) on the basis of the phase tracking reference signal (PTRS); and estimating a phase noise (PN) on the basis of the first phase noise and the common phase error (CPE). The PN is estimated through interpolation based on a specific reference point, and the specific reference point is based on the first phase noise and the CPE.

Method and apparatus for estimating phase noise in wireless communication system

A divider for dividing a radio signal includes an input port, a plurality of output ports and a cavity having one surface coupled to the input port and other surface coupled to the plurality of output ports. The other surface is formed as a curved surface, and the plurality of output ports is disposed on the other surface at certain intervals. The side of the cavity is slantly formed from the one surface to the other surface at a certain angle. The distances between the input port and the plurality of output ports is the same.

Divider for dividing wireless signals in a wireless communication system and a wireless device using the same

An air conditioning robot according to an embodiment of the present disclosure includes: a main body having a suction hole and a discharge hole; a cooling cycle including a compressor, a condenser, an expansion mechanism, and an evaporator, which are disposed within the main body; a blower fan configured to blow air suctioned through the suction hole so that the air is heat-exchanged with the evaporator and discharged through the discharge hole; a heat storage tank configured to accommodate a heat storage material in which heat of the condenser is stored; a heat dissipation part configured to dissipate the heat of the heat storage material accommodated in the heat storage tank, the heat dissipation part thermally contacting a heat transfer terminal disposed outside the main body; and a driving part configured to allow the main body to move so that the heat dissipation part thermally contacts or is thermally separated from the heat transfer terminal.

Air conditioning robot and air conditioning system including the same

A method of calibrating an array antenna in a wireless communication system includes a first step of transmitting a radio signal through a first antenna and a second antenna determined among a plurality of antennas included in the array antenna, a second step of measuring the radio signal through a specific coupling antenna of a plurality of coupling antennas adjacent to the plurality of antennas, a third step of estimating an error of the second antenna based on a result of the measurement of the radio signal, and a fourth step of calibrating the second antenna based on the error.

Method for calibrating an array antenna in a wireless communication system and apparatus thereof

A refrigerator includes a cabinet in which a storage space is formed; a main evaporator which is installed at one side of an inner portion of the storage space to cool the storage space; a case which is installed on the other side the inner portion of the storage space and defines a deep-freezing storage chamber; a drawer which is accommodated in the case so as to be retractable and withdrawable and in which food is stored; and a rapid cooling module which is provided on a rear side of the inner portion of the case and rapidly cools the deep-freezing storage chamber, in which the rapid cooling module may includes an auxiliary evaporator; and a thermoelectric device which is coupled to the auxiliary evaporator and cools the deep-freezing storage chamber through heat exchange by heat conduction.

Refrigerator

A refrigerator according to an embodiment of the present invention includes a cabinet in which a storage space is formed; a main evaporator which is installed at one side of an inner portion of the storage space to cool the storage space; a case which is installed on the other side of the inner portion of the storage space and defines a deep-freezing storage chamber; a drawer which is accommodated in the case so as to be retractable and withdrawable and in which food is stored; and a rapid cooling module which is provided on a rear side of the inner portion of the case and rapidly cools the deep-freezing storage chamber, in which the rapid cooling module may includes an auxiliary evaporator; and a thermoelectric device which is coupled to the auxiliary evaporator and cools the deep-freezing storage chamber through heat exchange by heat conduction.

A refrigerator according to an embodiment of the present invention includes a cabinet in which a storage space is formed; a main evaporator which is installed at one side of an inner portion of the storage space to cool the storage space; a case which is installed on the other side of the inner portion of the storage space and defines a deep-freezing storage chamber; a drawer which is accommodated in the case so as to be retractable and withdrawable and in which food is stored; and a rapid cooling module which is provided on a rear side of the inner portion of the case and rapidly cools the deep-freezing storage chamber, in which the rapid cooling module includes an auxiliary evaporator in which a low-temperature and low-pressure two-phase refrigerant flow, and a thermoelectric device which is installed so that an exothermic surface is attached to the surface of the auxiliary evaporator and an endothermic surface faces the drawer, thereby cooling the deep-freezing storage chamber.

Provided is a refrigerator with an ice maker. The ice maker includes an ice tray formed of a metal material, the ice tray providing an ice making space in which water for making an ice is supplied to make the ice and a resin layer formed of a plastic resin, the resin layer defining at least portion of the ice making space to smoothly convey the ice.

Refrigerator with ice maker

A refrigerator includes a storage room, a door for opening and shutting the storage room, and an ice storage unit. The refrigerator also includes a crushing member, which is rotatably provided at the ice storage unit, and a driving unit, which provides rotational power for the crushing member and includes a rotary shaft to be rotated in a first direction. The refrigerator further includes a first power transmission unit, which is coupled with the rotary shaft and is rotated in a second direction, and a second power transmission unit, which is separably coupled with the first power transmission unit and transmits the power of the first power transmission unit to the crushing member.

Refrigerator including ice crushing member with power transmission units

A refrigerating cycle system and a refrigerator having the same are provided. The refrigerating cycle system includes a condenser, a first capillary tube unit configured to receive refrigerant that has passed through the condensing unit, a gas-liquid separating unit configured to separate the refrigerant that has passed through the first capillary tube unit into liquid refrigerant and gaseous refrigerant, a first evaporator unit configured to receive the liquid refrigerant separated at the gas-liquid separating unit, a liquid refrigerant removal unit configured to receive the gaseous refrigerant separated at the gas-liquid separating unit and a first compressor unit configured to receive the gaseous refrigerant from the liquid refrigerant removal unit. The liquid refrigerant removal unit prevents supplying the separated liquid refrigerant to the first compressor unit.

Refrigerator cycle system and refrigerator having the same including a gas-liquid separator and a liquid refrigerant remover

Disclosed are an ice maker, a refrigerator having the ice maker, and a method for supplying ice of the refrigerator. An ice making container long in a vertical direction is installed on a side wall surface of a refrigerator door, makes ice, and pushes up the ice by screws to release the ice, whereby the size of the ice maker can be reduced, the area occupied by the ice maker can be reduced, and a refrigerator having the ice maker can become slimmer. Also, because an installation height of the ice maker is lowered to shorten a cold air supply path and prevent a loss in the process of supplying cold air to the ice making chamber. Also, because a cutting operation is performed simultaneously when the ice is lifted, a fabrication cost can be reduced and a defective state due to malfunction can be prevented.

Ice maker, refrigerator having the same, and method for supplying ice thereof

A refrigerator including an ice maker is disclosed. The refrigerator includes an ice maker comprising: an ice making tray rotatably provided therein; a driving unit connected with the ice making tray, to rotate the ice making tray selectively; and a cooling member provided in the ice making tray, contactable with water supplied to the ice making tray.

Refrigerator including ice maker

Disclosed herein is an ice maker for a refrigerator and a refrigerator having the same. The ice maker for a refrigerator may include an ice tray having a plurality of cells thereinside, an ejector configured to remove ice inside the cells, and a transfer unit configured to transfer the ice removed by the ejector in the length direction of the ice tray. Accordingly, the width of the ice maker can be reduced, thereby reducing the size of its occupied area in the width direction when the ice maker is provided therein.

Growing community of inventors

Seoul, South Korea

Seongjae Kim